MATLAB: Matrix dimension mismatch error

Question

Hi, this is my code.

my data is known as matrix_data(1,512). I want to save every iteration of matrix_data in a new array(new_matrix_data) so that in new_matrix_data there will be (1,5120). However, there is error in my code 'matrix dimensions mismatch' in this line new_matrix_data(1,k:k+512) = matrix_data(1,:);

Anyone can help me?

new_matrix_data=zeros(1,5120);   
l=1;
      k=1;
            while l~=2;
          new_matrix_data(1,k:k+512) = matrix_data(1,:);  
     k=k+512;
          save new_matrix_data 'new_matrix_data' 
         if k>=5120
             new_data_matrix=zeros(1,5120);
             k=1;
         end
            end

Answer 1

k:k+512 is 513 elements. k:k+511 would be 512 elements.